// or the input is dead, free the registers. This may make room
						// for other inputs.
						oldregs := s.values[v.Args[i.idx].ID].regs
						if oldregs&^regspec.clobbers == 0 || !s.liveAfterCurrentInstruction(v.Args[i.idx]) {
							s.freeRegs(oldregs &^ mask &^ s.nospill)
							freed = true
						}
					}
				}
				if !freed {
					break
				}
			}